Window-ventilator.



H. W. MW; 7 WINDOW VENTILATOR. PPLICATION FILED AUG.

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By WW- HERBERT WILLIAM DREW, OF CHICAGO, ILLINOIS.

WINDOW-VENTILATOR.

Specification of Letters Patent.

Patented July 13, 1915.

Application filed August 14, 1911. Serial No. 643,831.

' lators, of which the following is a specification.

My invention relates to ventilators for windows and is more particularlydesigned for car windows, although it may be used in residences andother buildings.

My object has been to produce a vent lator for the purpose describedwhich is simple and economical, to manufacture.

I have endeavored to produce a ventilator which may be placed inposition and ad usted with the utmost facility to give the desired aircurrents in different directions.

Other objects and advantages will become apparent in the followingspecification when taken in connection with the accompanying drawings,in which Figure 1 is a general view of a portion of the interior of acar with my ventilators ap-. plied to two of the windows therein.- Fig.2 is a perspective view of one of the ventilators showing the shuttersadjusted to de flect the air currents upwardly and downwardly. Fig. 3 isa perspective view of the same with one of the shutters closed andanother disposed in a vertical position spaced from the ventilatorframe. Fig. 4 is a sectional view taken substantially along the line 1,4 of Fig. 2. Fig. 5 is a sectional view taken along the line 5,5 of Fig.2.

. Fig. 6 is a sectional view taken along the line 6, 6 of Fig. 3. Fig. 7is a sectional view taken along the line 7, 7 of Fig. 3. Fig. 8 is anelevation of one end of the ventilator with portions broken away.

In Fig. 1 of the drawings two of my ventilators are shown in place andare designated by the reference numeral 10. I preferably make theventilator in two sections hinged together, but they may be made in theform of single independent sections.

These sections each comprise a main frame 11 inclosing an opening or airpassage. A wire screen or netting 12 is attached to said frame and heldin place by the chat 13. A shutter comprising a frame 14: and sheet ofglass 15 is adapted to close the said opening. When closed this shutterlies within the frame member 16, which is fixed to the main frame 11.This member 16 may be considered an extension of the main frame andincloses the shutter on three sides, the bottom being left open. Theopen space appears at 16 in the figures. The shutter is movablyattached-to this frame by means of a double link or yoke 17 which isadapted to inclose substantially half of the periphery of the shutter.This yoke is pivotally attached at its ends by pins 18 at substantiallythe middle of the width of the shutter at its ends. The yoke comprises abody portion 17 and downwardly bent ends 17% Trunnions 19 are providedat the corners of the yoke and are preferably integral therewith, thesetrunnions being adapted to slide in slots 20 in the vertical members 16of the main frame. These slots 20 are at the upper ends of the members16 and are of such length as to permit a sliding movement of suflicientextent to permit the shutter to swing outwardly to the position shown inFig. 4:. The horizontal member 16 of the frame is grooved or recessed asshown at 21 into which the body portion 17 of the yoke may partly orwholly enter when the shutter is closed as shown in Fig. 6. The lowerportion 22 of the shutter frame may be swung around to a positionbetween the yoke 17 and the vertical portion 24: of the frame. The edgeof the shutter is beveled as shown in 23 to provide a bearing surface atthe point of contact with said frame. When the edge of the shutter is inthis position the yoke 17 cannot close or swing downwardly to a verticalposition and the shutter is thereby held in an inclined position. Inthis latter position the inclination is opposite to that shown in Fig.4. By the simple expedient of reversing the shutter the angle ofinclination can be reversed and the currents of air may be deflecteddownwardly instead of upwardly. At the lower edge of the main frame Iprovide a pivoted plate 25, which serves as a retaining device for thelower edge of the shutter. This plate also serves as a dust guard andprevents particles of dust or cinders entering the car around the loweredge of the shutter. The lower edge of the ventilator normally restsoutside of a member of the window framing which forms a step ordepression as shown at 25*. The member 25 consists preferably of a metallic plate with ends 25 turned at right angles thereto. Pins 26 may befitted as pivots in apertures in the said ends and fixed in the framemembers 16. The dust guard be deflecteddownwa'rdly by or plate 25 maytherefore accommodate any angular position of the shutter. It may alsolie sidewise against it when the shutter is closed as shown in Fig. 6.An upturned edge 27 serves to support the shutter in proper relation tosaid plate. The weight of the shutter is supported by this edge andcauses the upper portion 25 of the plate to bear snugly againstthe lowerportion 22 of the shutter frame, thus causing a weatherproof joint to beproduced.

It will be seen that in using my ventilator, it can be inserted in placein the window with the utmost facility, and that the incoming air may bedeflected upwardly by simply opening the shutter. The air may reversingthe shutter and causing it to close as far as the yoke permits. Theshutter may also be placed in a verticahposition with its lower edgeresting upon the window casing as shown in Fig. 7 The currents may bedeflected in a variety of directions as shown in Figs. 2 and 3. Myimproved ventilator is also very effective as a dust guard and particlesof dust that enter the ventilator through the screen will be caught byit. When the deflector occupies'a position to deflect air currentsupwardly as shown in Fig. 1, the particles of dust or cinders thatstrike the shutter will slide downwardly and finally lodge between theplate 25 and the main frame. Should any considerable amount of dustaccumulate it can be allowed to escape by simply raising the wholeventilator frame.

While I have described more or less precisely the detailsof'construction, I do not wish to be understood as limiting myselfthereto, as I contemplate changes in form and the proportion of partsand the substitution of equivalents as circumstances may suggest orrender expedient without departing from the spirit of my invention.

I claim:

1. In a device of the character described, a frame having an opening, ashutter for said opening, a yoke pivotally attached at its ends to saidshutter and pivotally and slidably attached at its corners to saidframe.

2. In a device of the character described, a frame having an opening, ashutter for said opening, a yoke pivotally attached at its ends to saidshutter and slidably attached at its corners to said frame, and meansfor retaining one edge of said shutter adjacent said frame.

3. In a device of the character described, a frame having an opening, ashutter for said opening, a link pivotally attached at one end to saidshutter and slidably at tached at its other end to said frame, and meansfor detachable engagement by one edge of said shutter adjacent saidframe,

said means being adapted to inclose said edge portion of the shutter.

4:. In a device of the character described, a frame having an opening, ashutter for said opening, a link pivotally attached at one end to saidshutter and slidably attached at its other end to said frame, and meansfor detachable engagement by one edge of said shutter against saidframe, said means being adapted to inclose said edge portion of theshutter and to serve as a dust guard, said means being adapted toinclose said edge portion either in the closed position of said shutteror in its inclined position.

5. 'In a device of the character described, a frame having an opening, ashutter for said opening, and a link pivotally attached thereto adjacentthe middle point of its width, said shutter and said link being soarranged that the shutter may be inverted to lie with one edge betweensaid link and said frame and thereby be held in an open position.

6. In a device of the class described, a frame having an opening, ashutter for said opening, a yoke embracing a portion of the periphery ofsaid shutter and pivoted thereto at each of its two ends, and trunnionson said yoke slidably attached to said frame, said frame having slots toreceive said trunnions and permit a limited sliding movement thereof.

7. In a device of the character described, a frame having'an opening, ashutter for said opening, a yoke embracing a portion of the periphery ofsaid shutter and pivoted thereto at each of its two ends, trunnions onsaid yoke slidably attached to said frame, said frame having slots toreceive said trunnions and permit a limited sliding movement thereof,and a guard plate attached to saidframe and adapted to inclose one edgeportion of said shutter.

8. In a device of the character described, a frame having an opening, ashutter for said opening, and a plate pivoted at its ends upon saidframe for detachably engaging the edge of said shutter.

9. In a device of the character described, a frame having an opening, ashutter for said opening, and a plate to engage the edge of saidshutter, said plate having angularly disposed ends which are pivoted onsaid frame.

10. In a device of the character described, a frame having an opening, ashutter for said opening, and a member pivoted on said frame fordetachably engaging the edge of said shutter, said member havlng anangularly disposed edge adapted to cause a close contact of said memberwith one edge of said shutter in different angular positions of saidshutter and frame.

11. In a device of the character described,

maaeea a frame having an opening, a shutter for said opening, a yokepivotally attached at its ends to said shutter and pivotally attached atits corners to said frame.

12. In a device of the character described, a frame having an opening, ashutter for said opening, and means pivotally attached to said shutterand to said frame for supporting said shutter in an angular positionwith relation to said frame, said means being held in its supportingposition when one edge of said shutter has a position between said meansand said frame.

13. In a device of the character described, a frame having an opening, ashutter for said opening, and means pivotally attached to said frame andalso pivoted to said shutter at a point distant from one edge of saidshutter less than the distance between the pivotal ends of said means,whereby said edge may be placed between said means and.

said frame'to, hold said shutter in an inclined position.

14. In a device of the character described, a frame having an opening, ashutter for said opening, and a yoke pivotally attached to said shuttersubstantially at the middle portion of each end thereof and pivotallyand slidably attached to said frame at the upper portion thereof. a b

In testimony whereof, I have subscribed my name.

IIERBERT WILLIAM DREW. Witnesses:

ANNA L. WALTON,

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